Improvement in base-bukninfl stoves



No. 79,594. 'PATENTED JULY 7, 1868.

- J. s. PBRBY.-

BASE BURNING STOVE.

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JOHN S. PERRY, OF ALBANY, NEW YORK, ASSIGNOR TO JOHN S. PERRY, TRUSTEE AND EXEOUTOR, AND NATHAN B. PERRY, OFSAME PLAGE.

Letters Patent No. 79,594, dated July 7, 1868.

MPROV-EMBNT IN BASE-BURNING SiTOVES.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, JOHN S. PERRY, of Albany, in the county of Albany, and Stute of New York, have invented certain new and useful Improvements in Base-'Burning Stoves; and I do hereby declare 'that the following is a full, clear, andexact description thereof, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 is a front elevation of my improved stove.

d gigure 2 is a diametrical section through the stove, tuk'en in the plane indicated by red lines a: a: in figs. 1 an Figure 3 isa view of the upper portion of the stove, as seen by removing the top plate thereof.

Figures 4 and 5 are modifications, intended to show a mode of exposing a portion of the bottom of the oren-chamber.

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to certain improvements ou that class of stoves which are provided with magazines for supplyingcoal to re-pots arranged beneath them, and which have their coal-supplying magazines so applied within external casings as to form straight lues or chambers, which allow the products of combustion `to be carried to the tops of the stoves.

The invention which l have made in suoli stoves consists mainly in projecting thc back flue beyond the body offstfhe outer casing which surrounds the coal-magazine, so as to form a laterally-enlarged chamber, which will l'ow of any required amount 'of draught, and, in a stove of a given size, will allow of an increased capacity of coal-magazine, and admit of a comparatively narrow iine-spacc surrounding thc said magazine, as will be hereinafter explained.

The invention also consists in constructing such a stove with an oven-chamber in its upper portion, having an opening through its bottom leading to the coal-magazine, for supplying the same with coal, and having its side or sides, and a portion'of its bottom, exposed to the heated products of combustion Aon their wny to the projecting chamber at the back oi` the stove, as will be hereinafter explained.

It further consists in constructing the sidewall of an oven, which is arranged over the magazine of a basehurner having a lateral enlargement or lue projectirgbeyond the external case, with openings and with a. damper, for the purpose of allowing, when desired, a portion of the heated products to pass through and across theoven on their way to theescapc-ue, as will be hereinafter explained.

To enable others skilled in the art to understand niy invention, I will describe its construction and operation.

In the accompanying drawings, A represents the base-section of the stove, which serves, in conjunction with the section M, to enclose and form the ash-pit. The section M is supported upon and secured to the base A, and provided with doors, B, which allow access to.the repot C and its grate b, and also to the ash-pit. The {ire-pot C is constructed so as l'o iiare'u'pward, and it is supported at its upper end by means of-a. fiange Iresting upon suitable projections extending inward from the ripper contracted end of the section M. This fire-pot C may be provided with a lining, a, and is providedv with a grate, b, which latter rests upon a cross-bar, b', and is allowed to oscillate freely. A ring, g, which is suitably perforated, is arranged upon tho ilange of the fire-pot,v or upon the ring which supports the same, and is adapted to'serve as a register for regulating the supply of air to the `combustion-chamber above said pot, said air entering'the stove through register-openings c, made through doors B, leading into the space below thc tire-pot, as shown in fig. 2,

The conical section G, which is supported upon the contracted upper end of the section M, is perforated in a suitable manner, land-provided with illuminating-windows, E, and an illuminatingdoor or doors, E', for exposing the light of the ire. The door E" allows access to the fire-pot, for start-.ing a fire und for any other purpose.

Within the contracted upper end of the illuminating-section G, stirrups or coucavechairs, e, are formed, at

yequal distances apart, for receiving lugs d, which are cast upon the upper enlarged portion of theinverted conical base D, and serving as moans for sustaining this hase in a central position over the fire-pot, as shown in fig. 2. This inverted conical base D forms the lower end of the cylindrical coal-magazine H, and receives .upon it this cylinder II, thereby supporting the latter in proper position within the cylindrical casing I, and leaving an ascending-flue space or chamber, f, between sai-d cylinders, as shown.

The casing I is sec'ured to and supported upon'the upper` contracted end of the illuminating-section G, and receives upon its upper end the flaring ringJ, which forms the top section ofthe stove, and which is provided with a central hole through its` cap, closed, when desired, by a removable cover, K. I.

The upper end of the magazine H termina-tes at the base of wall P, and is covered by means of ahorizontnl plate, which forms the bottom of an oven, S, which oven is surrounded by an annular flaring wall, P.

An opening is made through the bottom plate ofthe oven S, which is provided with a sliding valve,j, having a rod,j3, projecting from it, and extending through the front part of the Isection J. Said opening is designed for allowing access to the magazine, for supplying it with coal. v

In tig. 2, the wall P is represented with scores or openings through its upper end,fr the purpose of allowing someof the heated products of'c'mbnstion to pass through the oven on their way -to the escape-iluef2.

By reference to'iigs. 2 and 3, it will be seen that a chamber, N, is formcd at the back of the cylindrical 'easing I, which extends beyond the linc of the body of this casing, and forms an enlarged due, or an enlargement of the'ue partially surrounding the' magazine I-I. Y

This enlargementforms a lue,f1, which extends from the top of the illuminating-section G to the top'plate of the section J, and which is separated from the vert-ical iuef by means of divisions pp and horizontal deecting-plates S, which latter direct the rising products of combustion forward, and thus arrest their passage from vertical flue f into the extended chamber N. Theescape-flung"2 is applied to the chamber N,near its lower end. i

It will be seen that the products of combustion will rise directly from the {ire-chamber, or space enclosed by the illuminating-section G, into the flnef, and pass into the spacefssurroundingthe oven S, thence pass backward into the chamberf, and nally escape through the iluefz.

In iigs. 4 and 5 it will he seen that provision is made for allowing the rising products of combustion to impinge against a portion of the bottom of theoven S. This is effected by reducing the diameter of the coalmagazine at its upper end, so as to form a central pipe-connection, H', which may be closed by ahinged damper, jl, moved by a rod,j2, or other analogous devicie.

In these figures I have also shown a sliding damper, 1"', applied to perforations-madc through the front part of the oven-wall P, so that portions of theescaping products of combustion may be conducted through the over. S, or not, as circumstances require. In all other respects the parts shown in figs. 4 and 5 may be constructed and arranged as described for similar parts shown in figs. 1, 2, and 3.

It will be seen from the above description that, as there is no limit to the size of the projecting chamber N,

any desired amount of draught can be provided for. I am enabled to make the upward tlue,f, of any required.l

width, and I am enabledto increase the size and capacity ot the magazine laterally without enlarging the outer casing. In stoves having the downward ordischarge-ilue contained within the body of the casing ofthe magazine, in order to secure suicicnt capacity for this flue, it was necessary to make the upward flue too wide. By making it narrow, the 4heat impinges more sharply against the sheet-iron casing7 and consequently more heat is radiated. This necessity ot making the flue very wide, of course reduced the size of the magazine.v

I have represented in the accompanying drawings,'and above described, a stove which is constructed so thatA fthe products of combustion ascend directly from the {ire-chamber tothe 'top of the tine-chamber surrounding the coal-magazine; but.my invention'is applicable to stoves which are so constructcdihat the products of combustion descend, after leaving the tire-pot, before they aspend to the top of the stove. l I dd not,`therefore, confine my invention to a direct-fine stove; nor do I desire to claim broadly a stove having ajacket or casing surrounding the coal-magazine. The chamber N', which I haveA shown, is for the purpose ofenla'rgin'g'the escape-flue, and not for the purpose of forming an outer casing to the magazine.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. .In a base-burning magazine-stove, wherein the products of combustion are carried directly upward from the `fire-pot, the flue-chamber N, extending partly around and beyond the body of the casing I, substantially as described.

2. The laterally-projecting flue-chamber. N, constructed with side divisions pip', bottom division p, and detlecting-platcs s', and applied to a stove which. is constructed upon the pbrinciple herein described.

3. An elevated oven, S, applied on top of the coal-magazine H, in combination with ailue-chambor, N, 'which projectsbeyond the body of the casing I, substantially as described.

' 4. Providing for exposing the outer portion of the bottom of tho elevated oven S to the heated products of combustion, in combination with an extended flue-chamber, N, and in a stove constructed substantially as described. l

5. Providing Aan oven, S, with a. register, I, and opening r, when employed in combination with an extended iluechamber, N, arranged as described. Y

JOHN S. PERRY.

Witnesses:

JOHN A. Zwnnnss, CHAs. L. RowLAND. 

